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<a name="1" href="#1">1</a>   <em>/**<em>*</em></em>
<a name="2" href="#2">2</a>   <em> * $Id: ConstructorUtils.html 10 2008-10-01 10:56:15Z azeckoski $</em>
<a name="3" href="#3">3</a>   <em> * $URL: http://reflectutils.googlecode.com/svn/maven/site/xref/org/azeckoski/reflectutils/ConstructorUtils.html $</em>
<a name="4" href="#4">4</a>   <em> * FieldUtils.java - genericdao - May 19, 2008 10:10:15 PM - azeckoski</em>
<a name="5" href="#5">5</a>   <em> **************************************************************************</em>
<a name="6" href="#6">6</a>   <em> * Copyright (c) 2008 Aaron Zeckoski</em>
<a name="7" href="#7">7</a>   <em> * Licensed under the Apache License, Version 2.0</em>
<a name="8" href="#8">8</a>   <em> * </em>
<a name="9" href="#9">9</a>   <em> * A copy of the Apache License has been included in this </em>
<a name="10" href="#10">10</a>  <em> * distribution and is available at: <a href="http://www.apache.org/licenses/LICENSE-2.0.txt" target="alexandria_uri">http://www.apache.org/licenses/LICENSE-2.0.txt</a></em>
<a name="11" href="#11">11</a>  <em> *</em>
<a name="12" href="#12">12</a>  <em> * Aaron Zeckoski (azeckoski @ gmail.com) (aaronz @ vt.edu) (aaron @ caret.cam.ac.uk)</em>
<a name="13" href="#13">13</a>  <em> */</em>
<a name="14" href="#14">14</a>  
<a name="15" href="#15">15</a>  <strong>package</strong> org.azeckoski.reflectutils;
<a name="16" href="#16">16</a>  
<a name="17" href="#17">17</a>  <strong>import</strong> java.io.Serializable;
<a name="18" href="#18">18</a>  <strong>import</strong> java.lang.ref.SoftReference;
<a name="19" href="#19">19</a>  <strong>import</strong> java.lang.reflect.Array;
<a name="20" href="#20">20</a>  <strong>import</strong> java.lang.reflect.Constructor;
<a name="21" href="#21">21</a>  <strong>import</strong> java.lang.reflect.InvocationTargetException;
<a name="22" href="#22">22</a>  <strong>import</strong> java.math.BigDecimal;
<a name="23" href="#23">23</a>  <strong>import</strong> java.math.BigInteger;
<a name="24" href="#24">24</a>  <strong>import</strong> java.sql.Timestamp;
<a name="25" href="#25">25</a>  <strong>import</strong> java.util.ArrayList;
<a name="26" href="#26">26</a>  <strong>import</strong> java.util.Arrays;
<a name="27" href="#27">27</a>  <strong>import</strong> java.util.Collection;
<a name="28" href="#28">28</a>  <strong>import</strong> java.util.Collections;
<a name="29" href="#29">29</a>  <strong>import</strong> java.util.Date;
<a name="30" href="#30">30</a>  <strong>import</strong> java.util.HashMap;
<a name="31" href="#31">31</a>  <strong>import</strong> java.util.HashSet;
<a name="32" href="#32">32</a>  <strong>import</strong> java.util.List;
<a name="33" href="#33">33</a>  <strong>import</strong> java.util.Map;
<a name="34" href="#34">34</a>  <strong>import</strong> java.util.Set;
<a name="35" href="#35">35</a>  <strong>import</strong> java.util.SortedMap;
<a name="36" href="#36">36</a>  <strong>import</strong> java.util.SortedSet;
<a name="37" href="#37">37</a>  <strong>import</strong> java.util.TreeMap;
<a name="38" href="#38">38</a>  <strong>import</strong> java.util.TreeSet;
<a name="39" href="#39">39</a>  <strong>import</strong> java.util.Vector;
<a name="40" href="#40">40</a>  
<a name="41" href="#41">41</a>  <strong>import</strong> org.azeckoski.reflectutils.map.ArrayOrderedMap;
<a name="42" href="#42">42</a>  
<a name="43" href="#43">43</a>  <em>/**<em>*</em></em>
<a name="44" href="#44">44</a>  <em> * Class which provides methods for dealing with class constructors,</em>
<a name="45" href="#45">45</a>  <em> * also provides access to all the public constructors for a class</em>
<a name="46" href="#46">46</a>  <em> * </em>
<a name="47" href="#47">47</a>  <em> * @author Aaron Zeckoski (azeckoski @ gmail.com)</em>
<a name="48" href="#48">48</a>  <em> */</em>
<a name="49" href="#49">49</a>  <strong>public</strong> <strong>class</strong> <a href="../../../org/azeckoski/reflectutils/ConstructorUtils.html">ConstructorUtils</a> {
<a name="50" href="#50">50</a>  
<a name="51" href="#51">51</a>      <em>/**<em>*</em></em>
<a name="52" href="#52">52</a>  <em>     * Empty constructor</em>
<a name="53" href="#53">53</a>  <em>     * &lt;br/></em>
<a name="54" href="#54">54</a>  <em>     * &lt;b>WARNING:&lt;/b> use the {@link #getInstance()} method to get this rather than recreating it over and over</em>
<a name="55" href="#55">55</a>  <em>     */</em>
<a name="56" href="#56">56</a>      <strong>public</strong> <a href="../../../org/azeckoski/reflectutils/ConstructorUtils.html">ConstructorUtils</a>() {
<a name="57" href="#57">57</a>          ConstructorUtils.setInstance(<strong>this</strong>);
<a name="58" href="#58">58</a>      }
<a name="59" href="#59">59</a>  
<a name="60" href="#60">60</a>      <strong>protected</strong> <a href="../../../org/azeckoski/reflectutils/ClassDataCacher.html">ClassDataCacher</a> getClassDataCacher() {
<a name="61" href="#61">61</a>          <strong>return</strong> ClassDataCacher.getInstance();
<a name="62" href="#62">62</a>      }
<a name="63" href="#63">63</a>  
<a name="64" href="#64">64</a>      <em class="comment">// init all the maps when class inits</em>
<a name="65" href="#65">65</a>      <strong>static</strong> {
<a name="66" href="#66">66</a>          makeImmutableDefaultsMap();
<a name="67" href="#67">67</a>          makePrimitiveDefaultsMap();
<a name="68" href="#68">68</a>          makePrimitiveWrapperMap();
<a name="69" href="#69">69</a>          makeWTPMap();
<a name="70" href="#70">70</a>      }
<a name="71" href="#71">71</a>  
<a name="72" href="#72">72</a>      <em class="comment">/*<em class="comment"> </em></em>
<a name="73" href="#73">73</a>  <em class="comment">     * Some code below derived from BeanCloner</em>
<a name="74" href="#74">74</a>  <em class="comment">     * <a href="http://www.coderslog.com/Main_Page" target="alexandria_uri">http://www.coderslog.com/Main_Page</a></em>
<a name="75" href="#75">75</a>  <em class="comment">     * Copyright 2007 CodersLog.com </em>
<a name="76" href="#76">76</a>  <em class="comment">     *   Licensed under the Apache License, Version 2.0 (the "License");</em>
<a name="77" href="#77">77</a>  <em class="comment">     */</em>
<a name="78" href="#78">78</a>      <strong>private</strong> <strong>static</strong> Set&lt;Class&lt;?>> immutableTypes = <strong>null</strong>;
<a name="79" href="#79">79</a>      <em>/**<em>*</em></em>
<a name="80" href="#80">80</a>  <em>     * @return a set of all known immutable types</em>
<a name="81" href="#81">81</a>  <em>     */</em>
<a name="82" href="#82">82</a>      <strong>public</strong> <strong>static</strong> <strong>synchronized</strong> Set&lt;Class&lt;?>> getImmutableTypes() {
<a name="83" href="#83">83</a>          <strong>if</strong> (immutableTypes == <strong>null</strong> 
<a name="84" href="#84">84</a>                  || immutableTypes.isEmpty()) {
<a name="85" href="#85">85</a>              makeDefaultImmuatableSet();
<a name="86" href="#86">86</a>          }
<a name="87" href="#87">87</a>          <strong>return</strong> immutableTypes;
<a name="88" href="#88">88</a>      }
<a name="89" href="#89">89</a>      <strong>private</strong> <strong>static</strong> <strong>void</strong> makeDefaultImmuatableSet() {
<a name="90" href="#90">90</a>          immutableTypes = getImmutableDefaults().keySet();
<a name="91" href="#91">91</a>      }
<a name="92" href="#92">92</a>  
<a name="93" href="#93">93</a>      <strong>private</strong> <strong>static</strong> Map&lt;Class&lt;?>, Object> immutableDefaults = <strong>null</strong>;
<a name="94" href="#94">94</a>      <em>/**<em>*</em></em>
<a name="95" href="#95">95</a>  <em>     * @return the map of all immutable types -> the default values for those types</em>
<a name="96" href="#96">96</a>  <em>     */</em>
<a name="97" href="#97">97</a>      <strong>public</strong> <strong>static</strong> <strong>synchronized</strong> Map&lt;Class&lt;?>, Object> getImmutableDefaults() {
<a name="98" href="#98">98</a>          <strong>if</strong> (immutableDefaults == <strong>null</strong> ||
<a name="99" href="#99">99</a>                  immutableDefaults.isEmpty()) {
<a name="100" href="#100">100</a>             makeImmutableDefaultsMap();
<a name="101" href="#101">101</a>         }
<a name="102" href="#102">102</a>         <strong>return</strong> immutableDefaults;
<a name="103" href="#103">103</a>     }
<a name="104" href="#104">104</a>     <strong>private</strong> <strong>static</strong> <strong>void</strong> makeImmutableDefaultsMap() {
<a name="105" href="#105">105</a>         immutableDefaults = <strong>new</strong> HashMap&lt;Class&lt;?>, Object>();
<a name="106" href="#106">106</a>         immutableDefaults.put(BigDecimal.<strong>class</strong>, <strong>new</strong> BigDecimal(0));
<a name="107" href="#107">107</a>         immutableDefaults.put(BigInteger.<strong>class</strong>, BigInteger.valueOf(0l));
<a name="108" href="#108">108</a>         immutableDefaults.put(Boolean.<strong>class</strong>, Boolean.FALSE);
<a name="109" href="#109">109</a>         immutableDefaults.put(Byte.<strong>class</strong>, Byte.valueOf((byte)0));
<a name="110" href="#110">110</a>         immutableDefaults.put(Character.<strong>class</strong>, (Character)c);
<a name="111" href="#111">111</a>         immutableDefaults.put(Date.<strong>class</strong>, <strong>new</strong> Date(0));
<a name="112" href="#112">112</a>         immutableDefaults.put(Double.<strong>class</strong>, Double.valueOf(0));
<a name="113" href="#113">113</a>         immutableDefaults.put(Float.<strong>class</strong>, Float.valueOf(0));
<a name="114" href="#114">114</a>         immutableDefaults.put(Long.<strong>class</strong>, Long.valueOf(0));
<a name="115" href="#115">115</a>         immutableDefaults.put(Integer.<strong>class</strong>, Integer.valueOf(0));
<a name="116" href="#116">116</a>         immutableDefaults.put(String.<strong>class</strong>, <span class="string">""</span>);
<a name="117" href="#117">117</a>         immutableDefaults.put(Short.<strong>class</strong>, Short.valueOf((<strong>short</strong>)0));
<a name="118" href="#118">118</a>         immutableDefaults.put(Timestamp.<strong>class</strong>, <strong>new</strong> Timestamp(0));
<a name="119" href="#119">119</a>     }
<a name="120" href="#120">120</a> 
<a name="121" href="#121">121</a>     <strong>private</strong> <strong>static</strong> Map&lt;Class&lt;?>, Class&lt;?>> primitiveToWrapper = <strong>null</strong>;
<a name="122" href="#122">122</a>     <em>/**<em>*</em></em>
<a name="123" href="#123">123</a> <em>     * @return the map of all primitive types -> wrapper types</em>
<a name="124" href="#124">124</a> <em>     */</em>
<a name="125" href="#125">125</a>     <strong>public</strong> <strong>static</strong> <strong>synchronized</strong> Map&lt;Class&lt;?>, Class&lt;?>> getPrimitiveToWrapper() {
<a name="126" href="#126">126</a>         <strong>if</strong> (primitiveToWrapper == <strong>null</strong> ||
<a name="127" href="#127">127</a>                 primitiveToWrapper.isEmpty()) {
<a name="128" href="#128">128</a>             makePrimitiveWrapperMap();
<a name="129" href="#129">129</a>         }
<a name="130" href="#130">130</a>         <strong>return</strong> primitiveToWrapper;
<a name="131" href="#131">131</a>     }
<a name="132" href="#132">132</a>     <strong>private</strong> <strong>static</strong> <strong>void</strong> makePrimitiveWrapperMap() {
<a name="133" href="#133">133</a>         primitiveToWrapper = <strong>new</strong> HashMap&lt;Class&lt;?>, Class&lt;?>>();
<a name="134" href="#134">134</a>         primitiveToWrapper.put(<strong>boolean</strong>.<strong>class</strong>, Boolean.<strong>class</strong>);
<a name="135" href="#135">135</a>         primitiveToWrapper.put(byte.<strong>class</strong>, Byte.<strong>class</strong>);
<a name="136" href="#136">136</a>         primitiveToWrapper.put(<strong>char</strong>.<strong>class</strong>, Character.<strong>class</strong>);
<a name="137" href="#137">137</a>         primitiveToWrapper.put(<strong>double</strong>.<strong>class</strong>, Double.<strong>class</strong>);
<a name="138" href="#138">138</a>         primitiveToWrapper.put(<strong>float</strong>.<strong>class</strong>, Float.<strong>class</strong>);
<a name="139" href="#139">139</a>         primitiveToWrapper.put(<strong>int</strong>.<strong>class</strong>, Integer.<strong>class</strong>);
<a name="140" href="#140">140</a>         primitiveToWrapper.put(<strong>long</strong>.<strong>class</strong>, Long.<strong>class</strong>);
<a name="141" href="#141">141</a>         primitiveToWrapper.put(<strong>short</strong>.<strong>class</strong>, Short.<strong>class</strong>);
<a name="142" href="#142">142</a>         primitiveToWrapper.put(<strong>boolean</strong>[].<strong>class</strong>, Boolean[].<strong>class</strong>);
<a name="143" href="#143">143</a>         primitiveToWrapper.put(byte[].<strong>class</strong>, Byte[].<strong>class</strong>);
<a name="144" href="#144">144</a>         primitiveToWrapper.put(<strong>char</strong>[].<strong>class</strong>, Character[].<strong>class</strong>);
<a name="145" href="#145">145</a>         primitiveToWrapper.put(<strong>double</strong>[].<strong>class</strong>, Double[].<strong>class</strong>);
<a name="146" href="#146">146</a>         primitiveToWrapper.put(<strong>float</strong>[].<strong>class</strong>, Float[].<strong>class</strong>);
<a name="147" href="#147">147</a>         primitiveToWrapper.put(<strong>int</strong>[].<strong>class</strong>, Integer[].<strong>class</strong>);
<a name="148" href="#148">148</a>         primitiveToWrapper.put(<strong>long</strong>[].<strong>class</strong>, Long[].<strong>class</strong>);
<a name="149" href="#149">149</a>         primitiveToWrapper.put(<strong>short</strong>[].<strong>class</strong>, Short[].<strong>class</strong>);
<a name="150" href="#150">150</a>     }
<a name="151" href="#151">151</a> 
<a name="152" href="#152">152</a>     <strong>private</strong> <strong>static</strong> Map&lt;Class&lt;?>, Class&lt;?>> wrapperToPrimitive = <strong>null</strong>;
<a name="153" href="#153">153</a>     <em>/**<em>*</em></em>
<a name="154" href="#154">154</a> <em>     * @return the map of all wrapper types -> primitive types</em>
<a name="155" href="#155">155</a> <em>     */</em>
<a name="156" href="#156">156</a>     <strong>public</strong> <strong>static</strong> <strong>synchronized</strong> Map&lt;Class&lt;?>, Class&lt;?>> getWrapperToPrimitive() {
<a name="157" href="#157">157</a>         <strong>if</strong> (wrapperToPrimitive == <strong>null</strong> ||
<a name="158" href="#158">158</a>                 wrapperToPrimitive.isEmpty()) {
<a name="159" href="#159">159</a>             makeWTPMap();
<a name="160" href="#160">160</a>         }
<a name="161" href="#161">161</a>         <strong>return</strong> wrapperToPrimitive;
<a name="162" href="#162">162</a>     }
<a name="163" href="#163">163</a>     <strong>private</strong> <strong>static</strong> <strong>void</strong> makeWTPMap() {
<a name="164" href="#164">164</a>         wrapperToPrimitive = <strong>new</strong> HashMap&lt;Class&lt;?>, Class&lt;?>>();
<a name="165" href="#165">165</a>         wrapperToPrimitive.put(Boolean.<strong>class</strong>, <strong>boolean</strong>.<strong>class</strong>);
<a name="166" href="#166">166</a>         wrapperToPrimitive.put(Byte.<strong>class</strong>, byte.<strong>class</strong>);
<a name="167" href="#167">167</a>         wrapperToPrimitive.put(Character.<strong>class</strong>, <strong>char</strong>.<strong>class</strong>);
<a name="168" href="#168">168</a>         wrapperToPrimitive.put(Double.<strong>class</strong>, <strong>double</strong>.<strong>class</strong>);
<a name="169" href="#169">169</a>         wrapperToPrimitive.put(Float.<strong>class</strong>, <strong>float</strong>.<strong>class</strong>);
<a name="170" href="#170">170</a>         wrapperToPrimitive.put(Integer.<strong>class</strong>, <strong>int</strong>.<strong>class</strong>);
<a name="171" href="#171">171</a>         wrapperToPrimitive.put(Long.<strong>class</strong>, <strong>long</strong>.<strong>class</strong>);
<a name="172" href="#172">172</a>         wrapperToPrimitive.put(Short.<strong>class</strong>, <strong>short</strong>.<strong>class</strong>);
<a name="173" href="#173">173</a>         wrapperToPrimitive.put(Boolean[].<strong>class</strong>, <strong>boolean</strong>[].<strong>class</strong>);
<a name="174" href="#174">174</a>         wrapperToPrimitive.put(Byte[].<strong>class</strong>, byte[].<strong>class</strong>);
<a name="175" href="#175">175</a>         wrapperToPrimitive.put(Character[].<strong>class</strong>, <strong>char</strong>[].<strong>class</strong>);
<a name="176" href="#176">176</a>         wrapperToPrimitive.put(Double[].<strong>class</strong>, <strong>double</strong>[].<strong>class</strong>);
<a name="177" href="#177">177</a>         wrapperToPrimitive.put(Float[].<strong>class</strong>, <strong>float</strong>[].<strong>class</strong>);
<a name="178" href="#178">178</a>         wrapperToPrimitive.put(Integer[].<strong>class</strong>, <strong>int</strong>[].<strong>class</strong>);
<a name="179" href="#179">179</a>         wrapperToPrimitive.put(Long[].<strong>class</strong>, <strong>long</strong>[].<strong>class</strong>);
<a name="180" href="#180">180</a>         wrapperToPrimitive.put(Short[].<strong>class</strong>, <strong>short</strong>[].<strong>class</strong>);
<a name="181" href="#181">181</a>     }
<a name="182" href="#182">182</a> 
<a name="183" href="#183">183</a>     <strong>private</strong> <strong>static</strong> Map&lt;Class&lt;?>, Object> primitiveDefaults = <strong>null</strong>;
<a name="184" href="#184">184</a>     <em>/**<em>*</em></em>
<a name="185" href="#185">185</a> <em>     * @return the map of all primitive types -> the default values for those types</em>
<a name="186" href="#186">186</a> <em>     */</em>
<a name="187" href="#187">187</a>     <strong>public</strong> <strong>static</strong> <strong>synchronized</strong> Map&lt;Class&lt;?>, Object> getPrimitiveDefaults() {
<a name="188" href="#188">188</a>         <strong>if</strong> (primitiveDefaults == <strong>null</strong> ||
<a name="189" href="#189">189</a>                 primitiveDefaults.isEmpty()) {
<a name="190" href="#190">190</a>             makePrimitiveDefaultsMap();
<a name="191" href="#191">191</a>         }
<a name="192" href="#192">192</a>         <strong>return</strong> primitiveDefaults;
<a name="193" href="#193">193</a>     }
<a name="194" href="#194">194</a>     <strong>private</strong> <strong>static</strong> <strong>char</strong> c;
<a name="195" href="#195">195</a>     <strong>private</strong> <strong>static</strong> <strong>void</strong> makePrimitiveDefaultsMap() {
<a name="196" href="#196">196</a>         primitiveDefaults = <strong>new</strong> HashMap&lt;Class&lt;?>, Object>();
<a name="197" href="#197">197</a>         primitiveDefaults.put(<strong>boolean</strong>.<strong>class</strong>, (Boolean)false);
<a name="198" href="#198">198</a>         primitiveDefaults.put(byte.<strong>class</strong>, (Byte)(byte)0);
<a name="199" href="#199">199</a>         primitiveDefaults.put(<strong>char</strong>.<strong>class</strong>, (Character)c);
<a name="200" href="#200">200</a>         primitiveDefaults.put(<strong>double</strong>.<strong>class</strong>, (Double)0.0D);
<a name="201" href="#201">201</a>         primitiveDefaults.put(<strong>float</strong>.<strong>class</strong>, (Float)0.0F);
<a name="202" href="#202">202</a>         primitiveDefaults.put(<strong>int</strong>.<strong>class</strong>, (Integer)0);
<a name="203" href="#203">203</a>         primitiveDefaults.put(<strong>long</strong>.<strong>class</strong>, (Long)0L);
<a name="204" href="#204">204</a>         primitiveDefaults.put(<strong>short</strong>.<strong>class</strong>, (Short)(<strong>short</strong>)0);
<a name="205" href="#205">205</a>     }
<a name="206" href="#206">206</a> 
<a name="207" href="#207">207</a>     <strong>private</strong> <strong>static</strong> <strong>void</strong> checkNull(Class&lt;?> type) {
<a name="208" href="#208">208</a>         <strong>if</strong> (type == <strong>null</strong>) {
<a name="209" href="#209">209</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"class type cannot be null to check the type"</span>);
<a name="210" href="#210">210</a>         }
<a name="211" href="#211">211</a>     }
<a name="212" href="#212">212</a> 
<a name="213" href="#213">213</a>     <em>/**<em>*</em></em>
<a name="214" href="#214">214</a> <em>     * Get the default value for for a type if one is available OR null if there is no default (since null sorta is the default)</em>
<a name="215" href="#215">215</a> <em>     * @param &lt;T></em>
<a name="216" href="#216">216</a> <em>     * @param type any class type including primitives</em>
<a name="217" href="#217">217</a> <em>     * @return the default value OR null if there is no default</em>
<a name="218" href="#218">218</a> <em>     */</em>
<a name="219" href="#219">219</a>     @SuppressWarnings(<span class="string">"unchecked"</span>)
<a name="220" href="#220">220</a>     <strong>public</strong> <strong>static</strong> &lt;T> T getDefaultValue(Class&lt;T> type) {
<a name="221" href="#221">221</a>         T val = <strong>null</strong>;
<a name="222" href="#222">222</a>         <strong>if</strong> (getPrimitiveDefaults().containsKey(type)) {
<a name="223" href="#223">223</a>             val = (T) getPrimitiveDefaults().get(type);
<a name="224" href="#224">224</a>         } <strong>else</strong> <strong>if</strong> (getImmutableDefaults().containsKey(type)) {
<a name="225" href="#225">225</a>             val = (T) getImmutableDefaults().get(type);
<a name="226" href="#226">226</a>         }
<a name="227" href="#227">227</a>         <strong>return</strong> val;
<a name="228" href="#228">228</a>     }
<a name="229" href="#229">229</a> 
<a name="230" href="#230">230</a>     <em>/**<em>*</em></em>
<a name="231" href="#231">231</a> <em>     * @param type any class</em>
<a name="232" href="#232">232</a> <em>     * @return true if this class is a primitive or other simple class (like String or immutable)</em>
<a name="233" href="#233">233</a> <em>     */</em>
<a name="234" href="#234">234</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> isClassSimple(Class&lt;?> type) {
<a name="235" href="#235">235</a>         checkNull(type);
<a name="236" href="#236">236</a>         <strong>boolean</strong> simple = false;
<a name="237" href="#237">237</a>         <strong>if</strong> ( isClassPrimitive(type) 
<a name="238" href="#238">238</a>                 || getImmutableTypes().contains(type)) {
<a name="239" href="#239">239</a>             simple = <strong>true</strong>;
<a name="240" href="#240">240</a>         }
<a name="241" href="#241">241</a>         <strong>return</strong> simple;
<a name="242" href="#242">242</a>     }
<a name="243" href="#243">243</a> 
<a name="244" href="#244">244</a>     <em>/**<em>*</em></em>
<a name="245" href="#245">245</a> <em>     * @param type any class</em>
<a name="246" href="#246">246</a> <em>     * @return true if this class is a bean of some kind (i.e. not primitive, immutable, or a holder like a map)</em>
<a name="247" href="#247">247</a> <em>     */</em>
<a name="248" href="#248">248</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> isClassBean(Class&lt;?> type) {
<a name="249" href="#249">249</a>         checkNull(type);
<a name="250" href="#250">250</a>         <strong>boolean</strong> bean = <strong>true</strong>;
<a name="251" href="#251">251</a>         <strong>if</strong> ( isClassSimple(type) || isClassObjectHolder(type) ) {
<a name="252" href="#252">252</a>             bean = false;
<a name="253" href="#253">253</a>         }
<a name="254" href="#254">254</a>         <strong>return</strong> bean;
<a name="255" href="#255">255</a>     }
<a name="256" href="#256">256</a> 
<a name="257" href="#257">257</a>     <em>/**<em>*</em></em>
<a name="258" href="#258">258</a> <em>     * @param type any class</em>
<a name="259" href="#259">259</a> <em>     * @return true if this class is an array (e.g. int[].class, {@link Integer}[] )</em>
<a name="260" href="#260">260</a> <em>     */</em>
<a name="261" href="#261">261</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> isClassArray(Class&lt;?> type) {
<a name="262" href="#262">262</a>         checkNull(type);
<a name="263" href="#263">263</a>         <strong>boolean</strong> array = false;
<a name="264" href="#264">264</a>         <strong>if</strong> (type.isArray()) {
<a name="265" href="#265">265</a>             array = <strong>true</strong>;
<a name="266" href="#266">266</a>         }
<a name="267" href="#267">267</a>         <strong>return</strong> array;
<a name="268" href="#268">268</a>     }
<a name="269" href="#269">269</a> 
<a name="270" href="#270">270</a>     <em>/**<em>*</em></em>
<a name="271" href="#271">271</a> <em>     * @param type any class</em>
<a name="272" href="#272">272</a> <em>     * @return true if this class is a primitive (e.g. int.class, boolean.class)</em>
<a name="273" href="#273">273</a> <em>     */</em>
<a name="274" href="#274">274</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> isClassPrimitive(Class&lt;?> type) {
<a name="275" href="#275">275</a>         checkNull(type);
<a name="276" href="#276">276</a>         <strong>boolean</strong> primitive = false;
<a name="277" href="#277">277</a>         <strong>if</strong> (type.isPrimitive()) {
<a name="278" href="#278">278</a>             primitive = <strong>true</strong>;
<a name="279" href="#279">279</a>         }
<a name="280" href="#280">280</a>         <strong>return</strong> primitive;
<a name="281" href="#281">281</a>     }
<a name="282" href="#282">282</a> 
<a name="283" href="#283">283</a>     <em>/**<em>*</em></em>
<a name="284" href="#284">284</a> <em>     * @param type any class</em>
<a name="285" href="#285">285</a> <em>     * @return true if this class is a list (e.g. {@link List}, {@link ArrayList})</em>
<a name="286" href="#286">286</a> <em>     */</em>
<a name="287" href="#287">287</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> isClassList(Class&lt;?> type) {
<a name="288" href="#288">288</a>         checkNull(type);
<a name="289" href="#289">289</a>         <strong>boolean</strong> list = false;
<a name="290" href="#290">290</a>         <strong>if</strong> (List.<strong>class</strong>.isAssignableFrom(type)) {
<a name="291" href="#291">291</a>             list = <strong>true</strong>;
<a name="292" href="#292">292</a>         }
<a name="293" href="#293">293</a>         <strong>return</strong> list;
<a name="294" href="#294">294</a>     }
<a name="295" href="#295">295</a> 
<a name="296" href="#296">296</a>     <em>/**<em>*</em></em>
<a name="297" href="#297">297</a> <em>     * @param type any class</em>
<a name="298" href="#298">298</a> <em>     * @return true if this class is a collection (e.g. {@link Collection}, {@link HashSet}, {@link Vector})</em>
<a name="299" href="#299">299</a> <em>     */</em>
<a name="300" href="#300">300</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> isClassCollection(Class&lt;?> type) {
<a name="301" href="#301">301</a>         checkNull(type);
<a name="302" href="#302">302</a>         <strong>boolean</strong> collection = false;
<a name="303" href="#303">303</a>         <strong>if</strong> (Collection.<strong>class</strong>.isAssignableFrom(type)) {
<a name="304" href="#304">304</a>             collection = <strong>true</strong>;
<a name="305" href="#305">305</a>         }
<a name="306" href="#306">306</a>         <strong>return</strong> collection;
<a name="307" href="#307">307</a>     }
<a name="308" href="#308">308</a> 
<a name="309" href="#309">309</a>     <em>/**<em>*</em></em>
<a name="310" href="#310">310</a> <em>     * @param type any class</em>
<a name="311" href="#311">311</a> <em>     * @return true if this class is a map (e.g. {@link Map}, {@link HashMap})</em>
<a name="312" href="#312">312</a> <em>     */</em>
<a name="313" href="#313">313</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> isClassMap(Class&lt;?> type) {
<a name="314" href="#314">314</a>         checkNull(type);
<a name="315" href="#315">315</a>         <strong>boolean</strong> collection = false;
<a name="316" href="#316">316</a>         <strong>if</strong> (Map.<strong>class</strong>.isAssignableFrom(type)) {
<a name="317" href="#317">317</a>             collection = <strong>true</strong>;
<a name="318" href="#318">318</a>         }
<a name="319" href="#319">319</a>         <strong>return</strong> collection;
<a name="320" href="#320">320</a>     }
<a name="321" href="#321">321</a> 
<a name="322" href="#322">322</a>     <em>/**<em>*</em></em>
<a name="323" href="#323">323</a> <em>     * @param type any class</em>
<a name="324" href="#324">324</a> <em>     * @return true if this is a collection, map, or array, </em>
<a name="325" href="#325">325</a> <em>     * something that holds a bunch of objects (e.g. {@link Map}, {@link Set}, {@link List}, array)</em>
<a name="326" href="#326">326</a> <em>     */</em>
<a name="327" href="#327">327</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> isClassObjectHolder(Class&lt;?> type) {
<a name="328" href="#328">328</a>         checkNull(type);
<a name="329" href="#329">329</a>         <strong>boolean</strong> holder = false;
<a name="330" href="#330">330</a>         <strong>if</strong> ( isClassArray(type) || isClassCollection(type) || isClassMap(type) ) {
<a name="331" href="#331">331</a>             holder = <strong>true</strong>;
<a name="332" href="#332">332</a>         }
<a name="333" href="#333">333</a>         <strong>return</strong> holder;
<a name="334" href="#334">334</a>     }
<a name="335" href="#335">335</a> 
<a name="336" href="#336">336</a>     <em>/**<em>*</em></em>
<a name="337" href="#337">337</a> <em>     * @param type any class</em>
<a name="338" href="#338">338</a> <em>     * @return the type of the array elements if this is an array or just the type if it is not an array</em>
<a name="339" href="#339">339</a> <em>     */</em>
<a name="340" href="#340">340</a>     <strong>public</strong> <strong>static</strong> Class&lt;?> getTypeFromArray(Class&lt;?> type) {
<a name="341" href="#341">341</a>         Class&lt;?> toType = type;
<a name="342" href="#342">342</a>         <strong>if</strong> (type.isArray()) {
<a name="343" href="#343">343</a>             toType = type.getComponentType();
<a name="344" href="#344">344</a>         }
<a name="345" href="#345">345</a>         <strong>return</strong> toType;
<a name="346" href="#346">346</a>     }
<a name="347" href="#347">347</a> 
<a name="348" href="#348">348</a>     <em>/**<em>*</em></em>
<a name="349" href="#349">349</a> <em>     * Checks for the special cases of the inner collections in {@link Collections} and {@link Arrays}</em>
<a name="350" href="#350">350</a> <em>     * @param type any class type</em>
<a name="351" href="#351">351</a> <em>     * @return the equivalent of the inner collection type or the original type if this is not one</em>
<a name="352" href="#352">352</a> <em>     */</em>
<a name="353" href="#353">353</a>     <strong>public</strong> <strong>static</strong> Class&lt;?> getTypeFromInnerCollection(Class&lt;?> type) {
<a name="354" href="#354">354</a>         <em class="comment">// check for the special cases of collections which cannot be constructed</em>
<a name="355" href="#355">355</a>         <strong>if</strong> (type != <strong>null</strong>) {
<a name="356" href="#356">356</a>             Class&lt;?> parent = type.getEnclosingClass();
<a name="357" href="#357">357</a>             <strong>if</strong> (parent != <strong>null</strong>) {
<a name="358" href="#358">358</a>                 <strong>if</strong> (Collections.<strong>class</strong>.equals(parent)) {
<a name="359" href="#359">359</a>                     <em class="comment">// unmodifiable collections</em>
<a name="360" href="#360">360</a>                     List&lt;Class&lt;?>> l = getInterfacesForClass(type);
<a name="361" href="#361">361</a>                     <strong>if</strong> (l.size() > 0) {
<a name="362" href="#362">362</a>                         <strong>for</strong> (Class&lt;?> iface : l) {
<a name="363" href="#363">363</a>                             <strong>if</strong> (Collection.<strong>class</strong>.isAssignableFrom(<strong>if</strong>ace)) {
<a name="364" href="#364">364</a>                                 <strong>if</strong> ( List.<strong>class</strong>.isAssignableFrom(<strong>if</strong>ace) 
<a name="365" href="#365">365</a>                                         || Set.<strong>class</strong>.isAssignableFrom(iface)) {
<a name="366" href="#366">366</a>                                     type = iface;
<a name="367" href="#367">367</a>                                 } <strong>else</strong> {
<a name="368" href="#368">368</a>                                     type = Collection.<strong>class</strong>;
<a name="369" href="#369">369</a>                                 }
<a name="370" href="#370">370</a>                                 <strong>break</strong>;
<a name="371" href="#371">371</a>                             } <strong>else</strong> <strong>if</strong> (Map.<strong>class</strong>.isAssignableFrom(<strong>if</strong>ace)) {
<a name="372" href="#372">372</a>                                 type = iface;
<a name="373" href="#373">373</a>                                 <strong>break</strong>;
<a name="374" href="#374">374</a>                             }
<a name="375" href="#375">375</a>                         }
<a name="376" href="#376">376</a>                     } <strong>else</strong> {
<a name="377" href="#377">377</a>                         type = Collection.<strong>class</strong>;
<a name="378" href="#378">378</a>                     }
<a name="379" href="#379">379</a>                 } <strong>else</strong> <strong>if</strong> (Arrays.<strong>class</strong>.equals(parent)) {
<a name="380" href="#380">380</a>                     <em class="comment">// Arrays#ArrayList special case</em>
<a name="381" href="#381">381</a>                     type = List.<strong>class</strong>;
<a name="382" href="#382">382</a>                 }
<a name="383" href="#383">383</a>             }
<a name="384" href="#384">384</a>         }
<a name="385" href="#385">385</a>         <strong>return</strong> type;
<a name="386" href="#386">386</a>     }
<a name="387" href="#387">387</a> 
<a name="388" href="#388">388</a>     <em>/**<em>*</em></em>
<a name="389" href="#389">389</a> <em>     * Gets a valid class which can be constructed from an interface or special cases which cannot be constructed</em>
<a name="390" href="#390">390</a> <em>     * @param &lt;T></em>
<a name="391" href="#391">391</a> <em>     * @param type any class</em>
<a name="392" href="#392">392</a> <em>     * @return the type which implements this interface if one can be found</em>
<a name="393" href="#393">393</a> <em>     */</em>
<a name="394" href="#394">394</a>     @SuppressWarnings(<span class="string">"unchecked"</span>)
<a name="395" href="#395">395</a>     <strong>public</strong> <strong>static</strong> &lt;T> Class&lt;T> getClassFromInterface(Class&lt;T> type) {
<a name="396" href="#396">396</a>         Class&lt;T> toType = type;
<a name="397" href="#397">397</a>         <em class="comment">// check for the special cases of collections which cannot be constructed</em>
<a name="398" href="#398">398</a>         type = (Class&lt;T>) ConstructorUtils.getTypeFromInnerCollection(type);
<a name="399" href="#399">399</a>         <em class="comment">// now check for interfaces</em>
<a name="400" href="#400">400</a>         <strong>if</strong> (type.isInterface()) {
<a name="401" href="#401">401</a>             <strong>if</strong> (SortedSet.<strong>class</strong>.isAssignableFrom(type)) {
<a name="402" href="#402">402</a>                 toType = (Class&lt;T>) TreeSet.<strong>class</strong>;
<a name="403" href="#403">403</a>             } <strong>else</strong> <strong>if</strong> (SortedMap.<strong>class</strong>.isAssignableFrom(type)) {
<a name="404" href="#404">404</a>                 toType = (Class&lt;T>) TreeMap.<strong>class</strong>;
<a name="405" href="#405">405</a>             } <strong>else</strong> <strong>if</strong> ( isClassList(type) ) {
<a name="406" href="#406">406</a>                 <em class="comment">// we use the thread safe version of list by default</em>
<a name="407" href="#407">407</a>                 toType = (Class&lt;T>) Vector.<strong>class</strong>;
<a name="408" href="#408">408</a>             } <strong>else</strong> <strong>if</strong> (Set.<strong>class</strong>.isAssignableFrom(type)) {
<a name="409" href="#409">409</a>                 toType = (Class&lt;T>) HashSet.<strong>class</strong>;
<a name="410" href="#410">410</a>             } <strong>else</strong> <strong>if</strong> ( isClassMap(type) ) {
<a name="411" href="#411">411</a>                 toType = (Class&lt;T>) ArrayOrderedMap.<strong>class</strong>;
<a name="412" href="#412">412</a>             } <strong>else</strong> <strong>if</strong> ( isClassCollection(type) ) {
<a name="413" href="#413">413</a>                 toType = (Class&lt;T>) Vector.<strong>class</strong>;
<a name="414" href="#414">414</a>             <em class="comment">// Serializable should stay at the end</em>
<a name="415" href="#415">415</a>             } <strong>else</strong> <strong>if</strong> (Serializable.<strong>class</strong>.isAssignableFrom(type)) {
<a name="416" href="#416">416</a>                 <em class="comment">// if it is serializable then it is probably a string right?</em>
<a name="417" href="#417">417</a>                 toType = (Class&lt;T>) String.<strong>class</strong>;
<a name="418" href="#418">418</a>             } <strong>else</strong> {
<a name="419" href="#419">419</a>                 <em class="comment">// TODO try to find the interface implementation in the ClassLoader (not actually possible without real hackery)</em>
<a name="420" href="#420">420</a>             }
<a name="421" href="#421">421</a>         }
<a name="422" href="#422">422</a>         <strong>return</strong> toType;
<a name="423" href="#423">423</a>     }
<a name="424" href="#424">424</a> 
<a name="425" href="#425">425</a>     <em>/**<em>*</em></em>
<a name="426" href="#426">426</a> <em>     * A simple but efficient method for getting the interfaces for a class type,</em>
<a name="427" href="#427">427</a> <em>     * this has some shortcuts for the common types like maps, lists, etc.&lt;br/></em>
<a name="428" href="#428">428</a> <em>     * Only returns the interfaces for the current type and not for all nested types</em>
<a name="429" href="#429">429</a> <em>     * </em>
<a name="430" href="#430">430</a> <em>     * @param type any class type</em>
<a name="431" href="#431">431</a> <em>     * @return the list of interfaces (empty if none)</em>
<a name="432" href="#432">432</a> <em>     */</em>
<a name="433" href="#433">433</a>     <strong>public</strong> <strong>static</strong> List&lt;Class&lt;?>> getInterfacesForClass(Class&lt;?> type) {
<a name="434" href="#434">434</a>         ArrayList&lt;Class&lt;?>> interfaces = <strong>new</strong> ArrayList&lt;Class&lt;?>>();
<a name="435" href="#435">435</a>         <em class="comment">// find the actual interfaces from the class itself</em>
<a name="436" href="#436">436</a>         <strong>for</strong> (Class&lt;?> iface : type.getInterfaces()) {
<a name="437" href="#437">437</a>             interfaces.add(iface);
<a name="438" href="#438">438</a>         }
<a name="439" href="#439">439</a>         <em class="comment">// add in the collection interface if this is a collection</em>
<a name="440" href="#440">440</a>         <strong>if</strong> ( isClassCollection(type) ) {
<a name="441" href="#441">441</a>             <strong>if</strong> ( isClassList(type) ) {
<a name="442" href="#442">442</a>                 interfaces.add(List.<strong>class</strong>);
<a name="443" href="#443">443</a>             } <strong>else</strong> <strong>if</strong> ( Set.<strong>class</strong>.isAssignableFrom(type)) {
<a name="444" href="#444">444</a>                 interfaces.add(Set.<strong>class</strong>);
<a name="445" href="#445">445</a>             }
<a name="446" href="#446">446</a>             interfaces.add(Collection.<strong>class</strong>);
<a name="447" href="#447">447</a>         } <strong>else</strong> <strong>if</strong> ( isClassMap(type) ) {
<a name="448" href="#448">448</a>             interfaces.add(Map.<strong>class</strong>);
<a name="449" href="#449">449</a>         }
<a name="450" href="#450">450</a>         <strong>return</strong> interfaces;
<a name="451" href="#451">451</a>     }
<a name="452" href="#452">452</a> 
<a name="453" href="#453">453</a>     <em>/**<em>*</em></em>
<a name="454" href="#454">454</a> <em>     * Adds the class which this class extends (if there is one) to the list of interfaces</em>
<a name="455" href="#455">455</a> <em>     * @see #getInterfacesForClass(Class)</em>
<a name="456" href="#456">456</a> <em>     * @param type any class type</em>
<a name="457" href="#457">457</a> <em>     * @return the list of interfaces and the class this extends (empty if none)</em>
<a name="458" href="#458">458</a> <em>     */</em>
<a name="459" href="#459">459</a>     <strong>public</strong> <strong>static</strong> List&lt;Class&lt;?>> getExtendAndInterfacesForClass(Class&lt;?> type) {
<a name="460" href="#460">460</a>         ArrayList&lt;Class&lt;?>> l = <strong>new</strong> ArrayList&lt;Class&lt;?>>();
<a name="461" href="#461">461</a>         Class&lt;?> superClass = type.getSuperclass();
<a name="462" href="#462">462</a>         <strong>if</strong> (superClass != <strong>null</strong>) {
<a name="463" href="#463">463</a>             l.add(superClass);
<a name="464" href="#464">464</a>         }
<a name="465" href="#465">465</a>         l.addAll( getInterfacesForClass(type) );
<a name="466" href="#466">466</a>         <strong>return</strong> l;
<a name="467" href="#467">467</a>     }
<a name="468" href="#468">468</a> 
<a name="469" href="#469">469</a>     <em>/**<em>*</em></em>
<a name="470" href="#470">470</a> <em>     * Get the wrapper class for this class if there is one</em>
<a name="471" href="#471">471</a> <em>     * @param beanClass any class</em>
<a name="472" href="#472">472</a> <em>     * @return the wrapper class if there is one OR just returns the given class</em>
<a name="473" href="#473">473</a> <em>     */</em>
<a name="474" href="#474">474</a>     <strong>public</strong> <strong>static</strong> Class&lt;?> getWrapper(<strong>final</strong> Class&lt;?> beanClass) {
<a name="475" href="#475">475</a>         Class&lt;?> wrapper = <strong>null</strong>;
<a name="476" href="#476">476</a>         <strong>if</strong> (beanClass != <strong>null</strong>) {
<a name="477" href="#477">477</a>             <strong>if</strong> ( isClassPrimitive(beanClass) ) {
<a name="478" href="#478">478</a>                 wrapper = getPrimitiveToWrapper().get(beanClass);
<a name="479" href="#479">479</a>             } <strong>else</strong> <strong>if</strong> ( isClassArray(beanClass) &amp;&amp; beanClass.getComponentType().isPrimitive()) {
<a name="480" href="#480">480</a>                 wrapper = getPrimitiveToWrapper().get(beanClass);
<a name="481" href="#481">481</a>             } <strong>else</strong> {
<a name="482" href="#482">482</a>                 wrapper = beanClass;
<a name="483" href="#483">483</a>             }
<a name="484" href="#484">484</a>             <strong>if</strong> (wrapper == <strong>null</strong>) {
<a name="485" href="#485">485</a>                 wrapper = beanClass;
<a name="486" href="#486">486</a>             }
<a name="487" href="#487">487</a>         }
<a name="488" href="#488">488</a>         <strong>return</strong> wrapper;
<a name="489" href="#489">489</a>     }
<a name="490" href="#490">490</a> 
<a name="491" href="#491">491</a>     <em>/**<em>*</em></em>
<a name="492" href="#492">492</a> <em>     * Will compare 2 classes for equality which will make a friendly comparison of types</em>
<a name="493" href="#493">493</a> <em>     * and will happily compare primitive types with wrappers and say they are equal</em>
<a name="494" href="#494">494</a> <em>     * @param c1 any class</em>
<a name="495" href="#495">495</a> <em>     * @param c2 any class</em>
<a name="496" href="#496">496</a> <em>     * @return true if the classes are equivalent, false otherwise</em>
<a name="497" href="#497">497</a> <em>     */</em>
<a name="498" href="#498">498</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> classEquals(<strong>final</strong> Class&lt;?> c1, <strong>final</strong> Class&lt;?> c2) {
<a name="499" href="#499">499</a>         <strong>boolean</strong> equals = false;
<a name="500" href="#500">500</a>         <strong>if</strong> (c1 == <strong>null</strong> || c2 == <strong>null</strong>) {
<a name="501" href="#501">501</a>             equals = false;
<a name="502" href="#502">502</a>         } <strong>else</strong> {
<a name="503" href="#503">503</a>             <strong>if</strong> (c1.isArray() &amp;&amp; c2.isArray()) {
<a name="504" href="#504">504</a>                 <em class="comment">// both arrays</em>
<a name="505" href="#505">505</a>                 <strong>if</strong> (c1.getComponentType().isPrimitive() == c2.getComponentType().isPrimitive()) {
<a name="506" href="#506">506</a>                     equals = c1.equals(c2);
<a name="507" href="#507">507</a>                 } <strong>else</strong> {
<a name="508" href="#508">508</a>                     <em class="comment">// mixed primitive/wrappers so make all wrappers</em>
<a name="509" href="#509">509</a>                     Class&lt;?> c1W = getWrapper(c1);
<a name="510" href="#510">510</a>                     Class&lt;?> c2W = getWrapper(c2);
<a name="511" href="#511">511</a>                     equals = c1W.equals(c2W);
<a name="512" href="#512">512</a>                 }
<a name="513" href="#513">513</a>             } <strong>else</strong> {
<a name="514" href="#514">514</a>                 <strong>if</strong> (c1.isArray() || c2.isArray()) {
<a name="515" href="#515">515</a>                     <em class="comment">// one array and the other is not so cannot be equals</em>
<a name="516" href="#516">516</a>                     equals = false;
<a name="517" href="#517">517</a>                 } <strong>else</strong> <strong>if</strong> (c1.isPrimitive() == c2.isPrimitive()) {
<a name="518" href="#518">518</a>                     equals = c1.equals(c2);
<a name="519" href="#519">519</a>                 } <strong>else</strong> {
<a name="520" href="#520">520</a>                     <em class="comment">// mixed primitive/wrappers so make all wrappers</em>
<a name="521" href="#521">521</a>                     Class&lt;?> c1W = getWrapper(c1);
<a name="522" href="#522">522</a>                     Class&lt;?> c2W = getWrapper(c2);
<a name="523" href="#523">523</a>                     equals = c1W.equals(c2W);
<a name="524" href="#524">524</a>                 }
<a name="525" href="#525">525</a>             }
<a name="526" href="#526">526</a>         }
<a name="527" href="#527">527</a>         <strong>return</strong> equals;
<a name="528" href="#528">528</a>     }
<a name="529" href="#529">529</a> 
<a name="530" href="#530">530</a>     <em>/**<em>*</em></em>
<a name="531" href="#531">531</a> <em>     * Checks if assignFrom is assignable to assignTo (i.e. this is OK: assignFrom b; assignTo a = (assignTo) b;) &lt;br/></em>
<a name="532" href="#532">532</a> <em>     * An example of this is: Integer b; Object a = (Object) b; &lt;br/></em>
<a name="533" href="#533">533</a> <em>     * Another example of this is: ExtendedThing b; Thing a = (Thing) b; &lt;br/></em>
<a name="534" href="#534">534</a> <em>     * This works like {@link #classEquals(Class, Class)} and will convert primitive class types for comparison automatically</em>
<a name="535" href="#535">535</a> <em>     * </em>
<a name="536" href="#536">536</a> <em>     * @param assignFrom any class</em>
<a name="537" href="#537">537</a> <em>     * @param assignTo any class</em>
<a name="538" href="#538">538</a> <em>     * @return true if the class is assignable or equal OR false otherwise</em>
<a name="539" href="#539">539</a> <em>     */</em>
<a name="540" href="#540">540</a>     <strong>public</strong> <strong>static</strong> <strong>boolean</strong> classAssignable(<strong>final</strong> Class&lt;?> assignFrom, <strong>final</strong> Class&lt;?> assignTo) {
<a name="541" href="#541">541</a>         <strong>boolean</strong> assignable = false;
<a name="542" href="#542">542</a>         <strong>if</strong> (assignTo == <strong>null</strong> || assignFrom == <strong>null</strong>) {
<a name="543" href="#543">543</a>             assignable = false;
<a name="544" href="#544">544</a>         } <strong>else</strong> {
<a name="545" href="#545">545</a>             <strong>if</strong> ( Object.<strong>class</strong>.equals(assignTo) ) {
<a name="546" href="#546">546</a>                 <em class="comment">// anything can assign to an object</em>
<a name="547" href="#547">547</a>                 assignable = <strong>true</strong>;
<a name="548" href="#548">548</a>             } <strong>else</strong> <strong>if</strong> ( classEquals(assignTo, assignFrom) ) {
<a name="549" href="#549">549</a>                 assignable = <strong>true</strong>;
<a name="550" href="#550">550</a>             } <strong>else</strong> {
<a name="551" href="#551">551</a>                 <strong>if</strong> (assignTo.isAssignableFrom(assignFrom)) {
<a name="552" href="#552">552</a>                     assignable = <strong>true</strong>;
<a name="553" href="#553">553</a>                 } <strong>else</strong> {
<a name="554" href="#554">554</a>                     <em class="comment">// make everything wrappers</em>
<a name="555" href="#555">555</a>                     Class&lt;?> c1W = getWrapper(assignTo);
<a name="556" href="#556">556</a>                     Class&lt;?> c2W = getWrapper(assignFrom);
<a name="557" href="#557">557</a>                     assignable = c1W.isAssignableFrom(c2W);
<a name="558" href="#558">558</a>                 }
<a name="559" href="#559">559</a>             }
<a name="560" href="#560">560</a>         }
<a name="561" href="#561">561</a>         <strong>return</strong> assignable;
<a name="562" href="#562">562</a>     }
<a name="563" href="#563">563</a> 
<a name="564" href="#564">564</a>     <em class="comment">/*<em class="comment"> </em></em>
<a name="565" href="#565">565</a> <em class="comment">     * Some code below derived from BeanUtilsBean and PropertyUtilsbean</em>
<a name="566" href="#566">566</a> <em class="comment">     * <a href="http://commons.apache.org/beanutils/" target="alexandria_uri">http://commons.apache.org/beanutils/</a></em>
<a name="567" href="#567">567</a> <em class="comment">     *   Licensed under the Apache License, Version 2.0 (the "License");</em>
<a name="568" href="#568">568</a> <em class="comment">     */</em>
<a name="569" href="#569">569</a> 
<a name="570" href="#570">570</a>     <em>/**<em>*</em></em>
<a name="571" href="#571">571</a> <em>     * Construct an object for the class of the given type regardless of whether it has a default constructor,</em>
<a name="572" href="#572">572</a> <em>     * this will construct anything which has a valid class type including primitives,</em>
<a name="573" href="#573">573</a> <em>     * arrays, collections and even classes without default constructors,</em>
<a name="574" href="#574">574</a> <em>     * this will attempt to use the default constructor first if available though, </em>
<a name="575" href="#575">575</a> <em>     * It must be possible to construct the class without knowing something about it beforehand,</em>
<a name="576" href="#576">576</a> <em>     * (i.e. classes with only constructors which require non-null arguments will not be able</em>
<a name="577" href="#577">577</a> <em>     * to be constructed)</em>
<a name="578" href="#578">578</a> <em>     * </em>
<a name="579" href="#579">579</a> <em>     * @param &lt;T></em>
<a name="580" href="#580">580</a> <em>     * @param type any object class</em>
<a name="581" href="#581">581</a> <em>     * @return the newly constructed object of the given class type </em>
<a name="582" href="#582">582</a> <em>     * (if primitive then a wrapped object will be returned which java will unwrap automatically)</em>
<a name="583" href="#583">583</a> <em>     * @throws IllegalArgumentException if the class is null or the class cannot be constructed</em>
<a name="584" href="#584">584</a> <em>     */</em>
<a name="585" href="#585">585</a>     @SuppressWarnings(<span class="string">"unchecked"</span>)
<a name="586" href="#586">586</a>     <strong>public</strong> &lt;T> T constructClass(Class&lt;T> type) {
<a name="587" href="#587">587</a>         <strong>if</strong> (type == <strong>null</strong>) {
<a name="588" href="#588">588</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"Cannot construct class when beanClass is null"</span>);
<a name="589" href="#589">589</a>         }
<a name="590" href="#590">590</a>         <em class="comment">// make sure we are not trying to construct an interface</em>
<a name="591" href="#591">591</a>         type = ConstructorUtils.getClassFromInterface(type);
<a name="592" href="#592">592</a>         T newC = <strong>null</strong>;
<a name="593" href="#593">593</a>         <strong>if</strong> ( isClassPrimitive(type) ) {
<a name="594" href="#594">594</a>             <strong>if</strong> (getPrimitiveDefaults().containsKey(type)) {
<a name="595" href="#595">595</a>                 newC = (T) getPrimitiveDefaults().get(type);
<a name="596" href="#596">596</a>             }
<a name="597" href="#597">597</a>         } <strong>else</strong> <strong>if</strong> ( isClassArray(type) ) {
<a name="598" href="#598">598</a>             Class&lt;?> componentType = getTypeFromArray(type);
<a name="599" href="#599">599</a>             <strong>try</strong> {
<a name="600" href="#600">600</a>                 newC = (T) Array.newInstance(componentType, 0);
<a name="601" href="#601">601</a>             } <strong>catch</strong> (RuntimeException e) {
<a name="602" href="#602">602</a>                 <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"Could not construct array of type: "</span> + componentType + <span class="string">" for: "</span> + type.getName());
<a name="603" href="#603">603</a>             }
<a name="604" href="#604">604</a>         }
<a name="605" href="#605">605</a>         <strong>if</strong> (newC == <strong>null</strong>) {
<a name="606" href="#606">606</a>             <strong>try</strong> {
<a name="607" href="#607">607</a>                 <em class="comment">// this should work 99% of the time</em>
<a name="608" href="#608">608</a>                 newC = (T) type.newInstance();
<a name="609" href="#609">609</a>             } <strong>catch</strong> (InstantiationException e) {
<a name="610" href="#610">610</a>                 <em class="comment">// now we will try to use the various constructors by giving them null values to construct the object</em>
<a name="611" href="#611">611</a>                 List&lt;Constructor&lt;T>> constructors = <strong>null</strong>;
<a name="612" href="#612">612</a>                 <strong>if</strong> ( ConstructorUtils.isClassBean(type) ) {
<a name="613" href="#613">613</a>                     <em class="comment">// get bean constructors</em>
<a name="614" href="#614">614</a>                     constructors = getClassDataCacher().getClassData(type).getConstructors();
<a name="615" href="#615">615</a>                 } <strong>else</strong> {
<a name="616" href="#616">616</a>                     <em class="comment">// simpler type</em>
<a name="617" href="#617">617</a>                     <strong>try</strong> {
<a name="618" href="#618">618</a>                         Constructor&lt;T>[] c = type.getConstructors();
<a name="619" href="#619">619</a>                         constructors = Arrays.asList(c);
<a name="620" href="#620">620</a>                     } <strong>catch</strong> (SecurityException e1) {
<a name="621" href="#621">621</a>                         <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"Could not construct object for class ("</span> + type.getName() + <span class="string">"): "</span> + e1.getMessage(), e1);
<a name="622" href="#622">622</a>                     }
<a name="623" href="#623">623</a>                 }
<a name="624" href="#624">624</a>                 <strong>for</strong> (Constructor&lt;T> constructor : constructors) {
<a name="625" href="#625">625</a>                     Object[] params = <strong>new</strong> Object[ constructor.getParameterTypes().length ];
<a name="626" href="#626">626</a>                     <strong>try</strong> {
<a name="627" href="#627">627</a>                         newC = (T) constructor.newInstance(params);
<a name="628" href="#628">628</a>                         <strong>break</strong>;
<a name="629" href="#629">629</a>                     } <strong>catch</strong> (IllegalArgumentException e1) {
<a name="630" href="#630">630</a>                         <em class="comment">// oh well</em>
<a name="631" href="#631">631</a>                     } <strong>catch</strong> (InstantiationException e1) {
<a name="632" href="#632">632</a>                         <em class="comment">// tough cookies</em>
<a name="633" href="#633">633</a>                     } <strong>catch</strong> (IllegalAccessException e1) {
<a name="634" href="#634">634</a>                         <em class="comment">// them's the breaks</em>
<a name="635" href="#635">635</a>                     } <strong>catch</strong> (InvocationTargetException e1) {
<a name="636" href="#636">636</a>                         <em class="comment">// life's tough</em>
<a name="637" href="#637">637</a>                     } <strong>catch</strong> (ExceptionInInitializerError e1) {
<a name="638" href="#638">638</a>                         <em class="comment">// meh</em>
<a name="639" href="#639">639</a>                     }
<a name="640" href="#640">640</a>                     <em class="comment">// ignore any exceptions and keep trying</em>
<a name="641" href="#641">641</a>                 }
<a name="642" href="#642">642</a>                 <strong>if</strong> (newC == <strong>null</strong>) {
<a name="643" href="#643">643</a>                     <em class="comment">// all attempts failed</em>
<a name="644" href="#644">644</a>                     <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"Could not construct object for class ("</span> + type.getName() + <span class="string">") using newInstance or using any of the constructors"</span>, e);
<a name="645" href="#645">645</a>                 }
<a name="646" href="#646">646</a>             } <strong>catch</strong> (IllegalAccessException e) {
<a name="647" href="#647">647</a>                 <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"Could not construct object for class ("</span> + type.getName() + <span class="string">"): "</span> + e.getMessage(), e);
<a name="648" href="#648">648</a>             }
<a name="649" href="#649">649</a>         }
<a name="650" href="#650">650</a>         <strong>return</strong> newC;
<a name="651" href="#651">651</a>     }
<a name="652" href="#652">652</a> 
<a name="653" href="#653">653</a>     <em>/**<em>*</em></em>
<a name="654" href="#654">654</a> <em>     * Construct an object for the class of the given type with the given params (arguments),</em>
<a name="655" href="#655">655</a> <em>     * arguments must match or the construction will fail</em>
<a name="656" href="#656">656</a> <em>     * </em>
<a name="657" href="#657">657</a> <em>     * @param &lt;T></em>
<a name="658" href="#658">658</a> <em>     * @param type any object class</em>
<a name="659" href="#659">659</a> <em>     * @param params the parameters (args) for the constructor</em>
<a name="660" href="#660">660</a> <em>     * @return the newly constructed object of the given class type OR fails if the params cannot be matched</em>
<a name="661" href="#661">661</a> <em>     * @throws IllegalArgumentException if the class is null or the class cannot be constructed</em>
<a name="662" href="#662">662</a> <em>     */</em>
<a name="663" href="#663">663</a>     @SuppressWarnings(<span class="string">"unchecked"</span>)
<a name="664" href="#664">664</a>     <strong>public</strong> &lt;T> T constructClass(Class&lt;T> type, Object[] params) {
<a name="665" href="#665">665</a>         <strong>if</strong> (type == <strong>null</strong>) {
<a name="666" href="#666">666</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"beanClass cannot be null"</span>);
<a name="667" href="#667">667</a>         }
<a name="668" href="#668">668</a>         T newC = <strong>null</strong>;
<a name="669" href="#669">669</a>         <strong>if</strong> (params == <strong>null</strong> || params.length == 0) {
<a name="670" href="#670">670</a>             newC = constructClass(type);
<a name="671" href="#671">671</a>         } <strong>else</strong> {
<a name="672" href="#672">672</a>             <strong>int</strong> paramsCount = params.length;
<a name="673" href="#673">673</a>             <em class="comment">// get all the constructors</em>
<a name="674" href="#674">674</a>             List&lt;Constructor&lt;T>> constructors = <strong>null</strong>;
<a name="675" href="#675">675</a>             <strong>try</strong> {
<a name="676" href="#676">676</a>                 constructors = getClassDataCacher().getClassData(type).getConstructors();
<a name="677" href="#677">677</a>             } <strong>catch</strong> (IllegalArgumentException e) {
<a name="678" href="#678">678</a>                 <strong>try</strong> {
<a name="679" href="#679">679</a>                     Constructor&lt;T>[] c = type.getConstructors();
<a name="680" href="#680">680</a>                     constructors = Arrays.asList(c);
<a name="681" href="#681">681</a>                 } <strong>catch</strong> (SecurityException e1) {
<a name="682" href="#682">682</a>                     <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"Could not construct object for class ("</span> + type.getName() + <span class="string">")"</span>, e1);
<a name="683" href="#683">683</a>                 }
<a name="684" href="#684">684</a>             }
<a name="685" href="#685">685</a>             <em class="comment">// make a list of the param type arrays</em>
<a name="686" href="#686">686</a>             List&lt;Class&lt;?>[]> constParamTypesList = <strong>new</strong> ArrayList&lt;Class&lt;?>[]>();
<a name="687" href="#687">687</a>             <strong>for</strong> (Constructor&lt;T> constructor : constructors) {
<a name="688" href="#688">688</a>                 constParamTypesList.add( constructor.getParameterTypes() );
<a name="689" href="#689">689</a>             }
<a name="690" href="#690">690</a>             <em class="comment">// make an array of the input params types</em>
<a name="691" href="#691">691</a>             Class&lt;?>[] paramTypes = <strong>new</strong> Class&lt;?>[params.length];
<a name="692" href="#692">692</a>             <strong>for</strong> (<strong>int</strong> i = 0; i &lt; params.length; i++) {
<a name="693" href="#693">693</a>                 <strong>if</strong> (params[i] == <strong>null</strong>) {
<a name="694" href="#694">694</a>                     <em class="comment">// handle nulls as any object</em>
<a name="695" href="#695">695</a>                     paramTypes[i] = Object.<strong>class</strong>;
<a name="696" href="#696">696</a>                 } <strong>else</strong> {
<a name="697" href="#697">697</a>                     Class&lt;?> c = params[i].getClass();
<a name="698" href="#698">698</a>                     paramTypes[i] = c;
<a name="699" href="#699">699</a>                 }
<a name="700" href="#700">700</a>             }
<a name="701" href="#701">701</a>             <em class="comment">// now see if any are a match</em>
<a name="702" href="#702">702</a>             Constructor&lt;T> matched = <strong>null</strong>;
<a name="703" href="#703">703</a>             Object[] args = <strong>null</strong>;
<a name="704" href="#704">704</a>             <em class="comment">// try to find exact match by size and order </em>
<a name="705" href="#705">705</a>             <strong>for</strong> (<strong>int</strong> i = 0; i &lt; constParamTypesList.size(); i++) {
<a name="706" href="#706">706</a>                 Class&lt;?>[] cParamTypes = constParamTypesList.get(i);
<a name="707" href="#707">707</a>                 <strong>if</strong> (cParamTypes.length == paramsCount) {
<a name="708" href="#708">708</a>                     <em class="comment">// found matching number of params</em>
<a name="709" href="#709">709</a>                     <strong>boolean</strong> matching = false;
<a name="710" href="#710">710</a>                     <strong>for</strong> (<strong>int</strong> j = 0; j &lt; cParamTypes.length; j++) {
<a name="711" href="#711">711</a>                         <strong>if</strong> ( classEquals(paramTypes[j], cParamTypes[j]) ) {
<a name="712" href="#712">712</a>                             matching = <strong>true</strong>;
<a name="713" href="#713">713</a>                         } <strong>else</strong> {
<a name="714" href="#714">714</a>                             matching = false;
<a name="715" href="#715">715</a>                             <strong>break</strong>;
<a name="716" href="#716">716</a>                         }
<a name="717" href="#717">717</a>                     }
<a name="718" href="#718">718</a>                     <strong>if</strong> (matching) {
<a name="719" href="#719">719</a>                         <em class="comment">// found exact match</em>
<a name="720" href="#720">720</a>                         matched = constructors.get(i);
<a name="721" href="#721">721</a>                         args = params;
<a name="722" href="#722">722</a>                         <strong>break</strong>;
<a name="723" href="#723">723</a>                     }
<a name="724" href="#724">724</a>                 }
<a name="725" href="#725">725</a>             }
<a name="726" href="#726">726</a>             <em class="comment">// try to find exact match by size and order (but not the exact class types, just assignable) </em>
<a name="727" href="#727">727</a>             <strong>if</strong> (matched == <strong>null</strong>) {
<a name="728" href="#728">728</a>                 <strong>for</strong> (<strong>int</strong> i = 0; i &lt; constParamTypesList.size(); i++) {
<a name="729" href="#729">729</a>                     Class&lt;?>[] cParamTypes = constParamTypesList.get(i);
<a name="730" href="#730">730</a>                     <strong>if</strong> (cParamTypes.length == paramsCount) {
<a name="731" href="#731">731</a>                         <em class="comment">// found matching number of params</em>
<a name="732" href="#732">732</a>                         <strong>boolean</strong> matching = false;
<a name="733" href="#733">733</a>                         <strong>for</strong> (<strong>int</strong> j = 0; j &lt; cParamTypes.length; j++) {
<a name="734" href="#734">734</a>                             <strong>if</strong> ( classAssignable(cParamTypes[j], paramTypes[j]) ) {
<a name="735" href="#735">735</a>                                 <em class="comment">// assignable (near) match</em>
<a name="736" href="#736">736</a>                                 matching = <strong>true</strong>;
<a name="737" href="#737">737</a>                             } <strong>else</strong> {
<a name="738" href="#738">738</a>                                 matching = false;
<a name="739" href="#739">739</a>                                 <strong>break</strong>;
<a name="740" href="#740">740</a>                             }
<a name="741" href="#741">741</a>                         }
<a name="742" href="#742">742</a>                         <strong>if</strong> (matching) {
<a name="743" href="#743">743</a>                             <em class="comment">// found nearly exact match</em>
<a name="744" href="#744">744</a>                             matched = constructors.get(i);
<a name="745" href="#745">745</a>                             args = params;
<a name="746" href="#746">746</a>                             <strong>break</strong>;
<a name="747" href="#747">747</a>                         }
<a name="748" href="#748">748</a>                     }
<a name="749" href="#749">749</a>                 }
<a name="750" href="#750">750</a>             }
<a name="751" href="#751">751</a>             <em class="comment">// TODO try to find near match by size (same number and types)</em>
<a name="752" href="#752">752</a>             <em class="comment">// TODO try to find near match by order (same order but with extra junk nulls on the end)</em>
<a name="753" href="#753">753</a>             <em class="comment">// TODO try to make any possible match</em>
<a name="754" href="#754">754</a>             <em class="comment">// now try to construct if we got a match</em>
<a name="755" href="#755">755</a>             <strong>if</strong> (matched != <strong>null</strong>) {
<a name="756" href="#756">756</a>                 <strong>try</strong> {
<a name="757" href="#757">757</a>                     newC = matched.newInstance(args);
<a name="758" href="#758">758</a>                 } <strong>catch</strong> (Exception e) {
<a name="759" href="#759">759</a>                     <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"Failure constructing object for class ("</span> + type.getName() + <span class="string">") with the given params: "</span> + ArrayUtils.arrayToString(params), e);
<a name="760" href="#760">760</a>                 }
<a name="761" href="#761">761</a>             }
<a name="762" href="#762">762</a>         }
<a name="763" href="#763">763</a>         <strong>if</strong> (newC == <strong>null</strong>) {
<a name="764" href="#764">764</a>             <strong>throw</strong> <strong>new</strong> IllegalArgumentException(<span class="string">"Could not construct object for class ("</span> + type.getName() + <span class="string">") with the given params: "</span> + ArrayUtils.arrayToString(params));
<a name="765" href="#765">765</a>         }
<a name="766" href="#766">766</a>         <strong>return</strong> newC;
<a name="767" href="#767">767</a>     }
<a name="768" href="#768">768</a> 
<a name="769" href="#769">769</a>     @Override
<a name="770" href="#770">770</a>     <strong>public</strong> String toString() {
<a name="771" href="#771">771</a>         <strong>return</strong> <span class="string">"Construct:"</span>+getClassDataCacher();
<a name="772" href="#772">772</a>     }
<a name="773" href="#773">773</a> 
<a name="774" href="#774">774</a>     <em class="comment">// STATIC access</em>
<a name="775" href="#775">775</a> 
<a name="776" href="#776">776</a>     <strong>protected</strong> <strong>static</strong> SoftReference&lt;ConstructorUtils> instanceStorage;
<a name="777" href="#777">777</a>     <em>/**<em>*</em></em>
<a name="778" href="#778">778</a> <em>     * Get a singleton instance of this class to work with (stored statically) &lt;br/></em>
<a name="779" href="#779">779</a> <em>     * &lt;b>WARNING&lt;/b>: do not hold onto this object or cache it yourself, call this method again if you need it again</em>
<a name="780" href="#780">780</a> <em>     * @return a singleton instance of this class</em>
<a name="781" href="#781">781</a> <em>     */</em>
<a name="782" href="#782">782</a>     <strong>public</strong> <strong>static</strong> <a href="../../../org/azeckoski/reflectutils/ConstructorUtils.html">ConstructorUtils</a> getInstance() {
<a name="783" href="#783">783</a>         <a href="../../../org/azeckoski/reflectutils/ConstructorUtils.html">ConstructorUtils</a> instance = (instanceStorage == <strong>null</strong> ? <strong>null</strong> : instanceStorage.get());
<a name="784" href="#784">784</a>         <strong>if</strong> (instance == <strong>null</strong>) {
<a name="785" href="#785">785</a>             instance = ConstructorUtils.setInstance(<strong>null</strong>);
<a name="786" href="#786">786</a>         }
<a name="787" href="#787">787</a>         <strong>return</strong> instance;
<a name="788" href="#788">788</a>     }
<a name="789" href="#789">789</a>     <em>/**<em>*</em></em>
<a name="790" href="#790">790</a> <em>     * Set the singleton instance of the class which will be stored statically</em>
<a name="791" href="#791">791</a> <em>     * @param instance the instance to use as the singleton instance</em>
<a name="792" href="#792">792</a> <em>     */</em>
<a name="793" href="#793">793</a>     <strong>public</strong> <strong>static</strong> <a href="../../../org/azeckoski/reflectutils/ConstructorUtils.html">ConstructorUtils</a> setInstance(<a href="../../../org/azeckoski/reflectutils/ConstructorUtils.html">ConstructorUtils</a> newInstance) {
<a name="794" href="#794">794</a>         <a href="../../../org/azeckoski/reflectutils/ConstructorUtils.html">ConstructorUtils</a> instance = newInstance;
<a name="795" href="#795">795</a>         <strong>if</strong> (instance == <strong>null</strong>) {
<a name="796" href="#796">796</a>             instance = <strong>new</strong> <a href="../../../org/azeckoski/reflectutils/ConstructorUtils.html">ConstructorUtils</a>();
<a name="797" href="#797">797</a>             instance.singleton = <strong>true</strong>;
<a name="798" href="#798">798</a>         }
<a name="799" href="#799">799</a>         ConstructorUtils.timesCreated++;
<a name="800" href="#800">800</a>         instanceStorage = <strong>new</strong> SoftReference&lt;ConstructorUtils>(instance);
<a name="801" href="#801">801</a>         <strong>return</strong> instance;
<a name="802" href="#802">802</a>     }
<a name="803" href="#803">803</a> 
<a name="804" href="#804">804</a>     <strong>private</strong> <strong>static</strong> <strong>int</strong> timesCreated = 0;
<a name="805" href="#805">805</a>     <strong>public</strong> <strong>static</strong> <strong>int</strong> getTimesCreated() {
<a name="806" href="#806">806</a>         <strong>return</strong> timesCreated;
<a name="807" href="#807">807</a>     }
<a name="808" href="#808">808</a> 
<a name="809" href="#809">809</a>     <strong>private</strong> <strong>boolean</strong> singleton = false;
<a name="810" href="#810">810</a>     <em>/**<em>*</em></em>
<a name="811" href="#811">811</a> <em>     * @return true if this object is the singleton</em>
<a name="812" href="#812">812</a> <em>     */</em>
<a name="813" href="#813">813</a>     <strong>public</strong> <strong>boolean</strong> isSingleton() {
<a name="814" href="#814">814</a>         <strong>return</strong> singleton;
<a name="815" href="#815">815</a>     }
<a name="816" href="#816">816</a> 
<a name="817" href="#817">817</a> }
</pre>
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